<template>
    <div>
        <!-- 面包屑 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <!-- 卡片视图 -->
        <el-card class="box-card">
            <!-- 搜索栏 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表 -->
            <el-table :data="userList" border stripe>
                <el-table-column label="#" type="index"></el-table-column>
                <el-table-column label="姓名" prop="username"></el-table-column>
                <el-table-column label="邮箱" prop="email"></el-table-column>
                <el-table-column label="电话" prop="mobile"></el-table-column>
                <el-table-column label="角色" prop="role_name"></el-table-column>
                <el-table-column label="状态">
                    <!-- 作用于插槽，scope.row会获取一行的数据 -->
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)">
                        </el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scope">
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-share" size="mini" @click="setRole(scope.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <!-- 分页区域 -->
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 3, 4]" :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
        </el-card>

        <!-- 添加用户对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClose">
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="100px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password" type="password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="联系方式" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <!-- 对话框底部 -->
            <span slot="footer" class="dialog-footer">
                <el-button type="primary" @click="addUser">确 定</el-button>
                <el-button @click="addDialogVisible = false">取 消</el-button>
            </span>
        </el-dialog>

        <!-- 修改用户的对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%">

            <el-form :model="editForm" :rules="addFormRules" ref="editFormRef" label-width="100px">
                <el-form-item label="用户名">
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="联系方式" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>

            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserInfo">确 定</el-button>
            </span>
        </el-dialog>

        <!-- 分配角色对话框 -->
        <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClose">
            <div>
                <p>当前用户：{{userInfo.username}}</p>
                <p>当前用户：{{userInfo.role_name}}</p>
                <p>分配角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option v-for="item in roleList" :key="item.id" :label="item.roleName" :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <span slot="footer" class="dialog-footer">
                <el-button @click="setRoleDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
            </span>
        </el-dialog>

    </div>
</template>

<script>
export default {
  data() {
    // 验证规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/
      if (regEmail.test(value)) return callback()
      callback(new Error('请输入合法的邮箱'))
    }
    var checkMobile = (rule, value, callback) => {
      const regEmail = /^(13[0-9]|14[5|7]|15[0|1|2|3|5|6|7|8|9]|18[0|1|2|3|5|6|7|8|9])\d{8}$/
      if (regEmail.test(value)) return callback()
      callback(new Error('请输入正确的手机号码'))
    }
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      addDialogVisible: false,
      editDialogVisible: false,
      setRoleDialogVisible: false,
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      addFormRules: {
        username: [{ required: true, message: '请输入用户名！', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名长度在 3 到 10 个字符', trigger: 'blur' }],
        password: [{ required: true, message: '请输入密码！', trigger: 'blur' },
          { min: 6, max: 12, message: '密码长度在 6 到 12 个字符', trigger: 'blur' }],
        email: [{ required: true, message: '请输入邮箱！', trigger: 'blur' }, { validator: checkEmail, trigger: 'blur' }],
        mobile: [{ required: true, message: '请输入联系方式！', trigger: 'blur' }, { validator: checkMobile, trigger: 'blur' }]

      },
      editForm: {},
      userInfo: {},
      roleList: [],
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    // 获取每一页的参数
    async getUserList() {
      const res = await this.$http.get('users', { params: this.queryInfo })
      if (res.meta.status !== 200) return this.$message.error('获取用户列表失败！')
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 修改页码后发起请求
    handleSizeChange(val) {
      this.queryInfo.pagesize = val
      this.getUserList()
    },
    // 修改每页数据后发起请求
    handleCurrentChange(val) {
      this.queryInfo.pagenum = val
      this.getUserList()
    },
    // 修改数据状态
    async userStateChange(userinfo) {
      const res = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) return this.$message.error('更新状态失败！')
      this.$message.success('更新状态成功！')
    },
    // 关闭时重置数据
    addDialogClose() {
      this.$refs.addFormRef.resetFields()
    },
    // 添加新用户
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        const res = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        this.$message.success('添加用户成功！')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    // 获取修改数据
    async showEditDialog(id) {
      const res = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('查询失败！')
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 修改用户信息
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        console.log(this.editForm)
        const res = await this.$http.put('users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })
        console.log(res)
        if (res.meta.status !== 200) return this.$message.error('修改用户信息失败！')
        this.editDialogVisible = false
        this.$message.success('修改用户信息成功！')
        this.getUserList()
      })
    },
    // 根据id删除用户
    async removeUserById(id) {
      // this.$confirm会返回Promise对象，确定返回confirm，取消返回cancel
      const confirmResult = await this.$confirm('确认删除该用户?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmResult !== 'confirm') return
      const res = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败！')
      this.$message.success('删除用户成功！')
      this.getUserList()
    },
    // 点击分配，获取角色数据
    async setRole(info) {
      this.userInfo = info
      const res = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败！')
      this.roleList = res.data
      this.setRoleDialogVisible = true
    },
    async saveRoleInfo() {
      if (!this.selectedRoleId) return this.$message.error('请选择角色！')
      const res = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) return this.$message.error('分配角色失败！')
      this.$message.success('分配角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    setRoleDialogClose() {
      this.userInfo = []
      this.selectedRoleId = ''
    }
  }
}
</script>

<style lang="less" scoped>
</style>
